INTRODUCTORY LETTER. 
Professor N. S. SHaver, Devector Kentucky Geological Survey: 
~ Dear Sir: I herewith send you a report on the timbers 
ef the North Cumberland, which is a continuation, both in 
method and purpose, of a previous report on the timbers of 
four counties of Western Kentucky. The study upon which 
the present report is based was made during July and Au- 
gust, 1876, and was sufficiently exhaustive to insure accuracy 
and a reasonable degree of completeness. 
Very respectfully, 
LAFAYETTE H. DeFRIESE. 
New York, March 20, 1877. 
TIM. 1.—6 81 
